Fence loom



Nov. 27, 1923.

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FENCE. LOOM im' sheisisheet 21") Filed sept. 1s. 1922- Patented Nov. 2?, 1922.

JAMES W. SNEDEKEB, QF ADE-IAN, MICHIGAN, T0 `P MYE STEEL @c VIRE'COII- PNY, 0F 'ADRLILL MGHIGAN. CORPORATGN 0F T?l'EW' JERSEY.

FENCE LOOIQT. v

Application filed September 13, 1922. Serial No. 587,911.

To all t0/0m z'zf may concern.'

Be it known that JAMES FV. SNEDEKER, a citizen of the United States. and residing at Adrian, in the county of Lena-wee and State of Michigan, have invented a new and Improved Fence Loom, oit' which the following is a specification.

rThis invention relates to looms designed for producing ornamental fencing for lawns and gardens, and particularly Jfencing provided with pickets which are closer togethervat the bottom or" the fence than at the top, and its object is to provide a machine which will .twist pairs oi' vwires into longitudinal strands to securely position vertical main pickets whose height is that of the fence and whose upper ends are bent to form arches and are secured by the upper strand wires to the sides of other pickets, and will also securely position other secondary or hair-pin pickets which Vare bent midway their length to form arches and which have parallel straight portions between each two of the main' pickets.

This invention consists of a machine embodying a drum having a series ot triangular anvils around which the arches at the ends of the main pickets may be bent, a second drum around which the secondary or hair-pin pickets may be bent so that their ends will lie parallel and between the main pickets, and means icr twisting pairs et wires into strands to hold the pickets in position.

It also comprises biturcated twisters consisting of pairs oi.I channels to receive the pairs of strand wires, the spaces between the channels being of sufficient length Vto permit the secondary wires to be bent around the anvils provided therefor and pass between the two wires of each strand.

It further consists in the details of construction illust-rated in the accompanying drawings and particularly pointedout in the claims.

In the drawings, Fig. 1 is a plan of this improved fence loom, the front end being at the right in the drawing. Fig. 2 is an elevation ot the leftside thereof. Fig. 3 is a frontI elevation of the machine. Figs.

i 'and 5 are plans ofl the front end of this machine with the parts in two positions. Fig. 6 is a section `on the line 6-6of Fig. 1. Fig. 7 is a section onthe line 7 7 of Fig. 6. Fig. 8 isa section on the line 8 8 of Fig. 7. Fig. y9 is a section on the line 9 9 of Fig. 6. Fig. 10 is a side elevation of one of the main strandV twisters. Fig. 11 is a section on the line 11--11 of Fig. 10 on a largerl scale. Fig. 12 is a longitudinal section of this twister. Figs. 13 and 14 are sections on the lines 13-13 and 14--14 of Fig. 12....'` Fig. 15 is an enlargement ot the front end or' the twister shown in Fig. 12. `Fig. 16 is a section on the line 16-16 of Fig. 15. Fig. 17 is a side elevation of .one of the twol twisters employed for securing the arched ends ot the main pickets.V Fig. 18 is a section on the line 18-18 of Fig. 17. Fig. 19 isa section on the line 19-19 of F i'g. 18. Fig. 2O is a side elevation of the mechanism :tor actuating the beaters with a beater at the front end of its stroke. F ig. 21 is a similar view ot a front end of a twister and the `beater at the rear end of its stroke. Fig. 22 is a yfront elevation of a series of twisters and the beaters adjacent thereto.- Fig. 28. isa side elevation taken from within the loom on the line 253-23 of Fig. 1 oit 'the mechanism for bending the arches at'the ends of the main picket-s. F ig. 24 is a section on the line 24.-24 oit Fig. 23. Fig. 25 is an elevation of the pulley for driving the fence winding mechanism; Fig. 26 is ari-elevation of the anvil wheel for the hair-pin pickets. Fig. 27 isa section onjtheline 27-27 of Fig. 26. Fig. 28 is a side elevation ot a portion of a feed wheel. yFig. 29 is a side elevation ot a group otdriving gearsfor the several mechanisms :tor weaving the fence. Figs. 30 and 31 are elevations on the lines 30-30 and 31-31 of Fig. 29 respectively. Fig. 82 is a section' on the line 32-32 of Fig. 31 and is also a side elevation of a brake wheel for the strand wires. Fig. -33 is a radial section of the rim of this brake wheel. Figi is a section on the line 341-34 of Fig. 33. Fig. 85 is a view on a larger scale showing the means for driving v known.

the partition ring for separating the two strand wires on a brake wheel. Fig. 36 is a section on the line -36-36 of Fig. 35. Fig. 37 is a side elevation of the driving mechanism for the anvil wheels. Figs. 38 and 39 are sections on the lines 38-38 and 39-39 of Fig. 37. Fig. 40 is an elevation of the crank for drivingthe twisters. Fig. 41 is a section on the line 41-41 of Fig. 40. Fig. 42 is a section on the line 42-42 of Fig. 41. Fig. 43 is a fragment plan of this crank showing the end of the adjusting screwY for the crank pin. Fig. 44 is a diagrammatic longitudinal section of the machine. Fig. 45 is a side elevation of the mechanism for trimming off the ends of the pickets. Fig. 46 is a front elevation thereof.

Similar reference characters refer to like parts throughout the several views.

The fence which is woven on the present loom is shown in Figs. 4 and 5 and consists of a series of strands numbered 1 to 9 inclusive and each formed of two wires twisted together. The strands 8 and 9 may be termed the argh-retaining strands. At regular intervals these strands receive the main pickets 10, the end 11 of each picket being bent to arch form and secured to the second picket following. A hair-pin picket 12 is secured centrally over each alternate main picket, the sides 13 of the hair-pin pickets being midway between the two adjacent main pickets. rFhe direct-ion of twist of the strands is the same between two adjacent main pickets, but -is reversed at each main picket. Tt is therefore the same on both sides of each part 13 of each hair-pin picket. In the present drawings, the pickets are shown of crinkly `or wavy wire and it is assumed that they lare cut to length before being fed into the machine and that they are introduced manually from the right sideof the machine.

As shown in Figs. 1 and 2, the machine has two side frames 15 andV 16 connected at the front by the cross member 17.. The side frames are also connected by the cross bar 18 and by such other cross bars as will be hereafter described in connection with their specific functions. At the rear end of the machine is a winding drum 19 for the finished fence, which drum may be of the same type as that described in my former Patent No. 1,088,844, dated March 3, 1914. This drum is driven by the pulley 20 and belt 21.

The pulley 22 journaled on the shaft 24 is Y provided to receive a main driving belt for the loom and to it is attached one member 25 of a clutch, the vother member 26 being splined on the shaft 24 in the usual manner, this detail not being shown as it is well Y The clutchA member 26 is slid into and out of engagement by the varm 27 on tho transverse shaft 28, supported by bearings 29 on the side frames. At the opposite end ceives thebelt 2O (Fig. 25)

of this shaft 28 is a crank arm 30 from which the link 31 extends to the lever 32 which is convenient to the person operating the machine whose regular position is at that point. Any other desired means may be used to drive this shaft 24 and for controlling its operation. This shaft carries a pinion 34 which meshes with the gear 35 on the main countershaft 36, journaled in the bearings 37 on the side frame 15.

The main countershaft carries a bevel gear 38 at its frontend which meshes with the bevel gear 39 on the transverse shaft 40 which is the only constantly runningl shaft of the loom proper. This shaft actuates the beaters which carry the pickets forward after they have been introduced by hand, it actuates the device for forming the arches on the ends of the main pickets, and it has a pulley 42 on its opposite end which reto drive the winding drum 19. The sizeof this pulley andthe speed of the shaft 40 is such that the belt 2O is liable to slip, especially when the roll of fence on the winding drum becomes large. The tension on the belt may be varied by the idler pulley 43 carried by the arm 44 and adjustable by the screw 45 and nut 46. The longitudinal shaft 48 is mountedin bearings 47 and actuates the twisters which must remain at rest during the times the pickets are inserted and moved Jforward by the beaters. Tn Figs. 29 and 30 a modified Geneva movement vis shown connecting the shafts 36 and 48 so as to turn the shaft 48 oner fourth rotation for each rotation of the shaft 36 and to secure this movement during about one fourth of the rotation of the shaft 36 so that the shaft 48 will be at rest three fourths of the time and turn one fourth of the time. This gearing consists of the notched plate-49 and the irregular gear 50 on the shaft 48 and the hub 51 on the shaft Y i The ani/vil drum.

. Mounted at the front end of the loom in the bearings 55 is a shaft 56 having a worm gear 57 at its left end. A longitudinal shaft 58 is mounted in bearings 59 and carries a worm 60 at its front end meshing with the worm gear 57. The circumferential distance the anvil drum rotates determines the spacing between the pickets and means are therefore provided` for changing the relative rotation of this shaft 58 relative to the shaft 48.

A series of gears 61, 62 68, or any other desired number, of different sizes. are secured to the shalt 58. A. 64 is slidable on but driven by the shaft 48, being secured in any desired position by the screw 65. A bracket 66 on the main frame 15 supports a pair of plates 67, one on each side of the gear 64 which carry the pin 68 on which the idler gear 69 is mounted. The fianges 70 on these plates are circular and formed with slots 71 to receive the bolts 72 so that the idler gear may be swung into engagement' with of the gears on the shaft 58. The shaft 58 and the anvil drum will therefore turn with each intermittent rotation of the shaft 48.

l On the anvil drum shaft 56 are mounted a series of wheels 74 having flanges 75 to support the woven fence7 particularly the strands thereof, and a series of teeth 7 6 to engage the pickets so that the fence and its strand wires will be moved step by step through the loom. These teeth are preferably on a ring 7 6a, adjustable on the wheel 74 so that the teeth of all the wheels may be alined. On this shaft is also mounted an anvil wheel 77 having a series of radially slidable anvils 78 around which the hairpin pickets are bent as shown in Figs. 4 and 5. As shown in Figs. 26 and 27 these anvils have stems 79 slidable in the flange 80 on the wheel 77 and these anvils are normally held out by the springs 82. Adjacent the anvil wheel 77 is a cam disk 88 having a cam ange 84 adapted to engage the lugs 85 on the anvils. This disk may be positioned by the anvil shaft 56 and has a foot 86 attached to the cross bar 87 which sup ports the beater guides and is shown in plan in Fig. 4.

The anvils 78 must be out of the path of the sides 18"L of the hairpin pickets as they are swung from the position shown in solid lines in Fig. 5 to that shown in dotted lines and this is provided for by this cam flange 84 pulling in the anvils. The movements of the driving worm 60 and gear 57 cause the shaft 56 to turn the angular distance between anvils 78 at each actuation of the twisters.

The finistere.

Mounted on the side frames is a cross bar 88 which supports the main bearings 91 and 92 for the twisters. These are of two types, those for twisting the two upper or archsupporting strands of the fence and those for twisting the remainder rof the strands. The latter will be considered first.

Each of these bearings 91 receives the hub 98 of a twister and each hub is provided with two grooves 94 to permit the passage of a strand' wire A. The twister has a collar 95 to engage its bearing and two bearing rings 96 forming parts of ball bearings, the remaining parts being` the stationary rings 97 and the balls 98. These bearings are-adjustable by means of the collars 99 which also prevent endwise movement of the twister. @n the rear end of the twister is a pinion 100 meshing with a rack bar 101 slidably supported by the cross bar 88. This cross bar is mounted on pedestals 102 shown in Fig. 2. y

The twister is formed of two jaws 108 united at the hub 98 and the flanges 104 flare laterally so as to aord ready entrance for the pickets. The parallel flanges 105 serve as guides for the strand wires A.. The front ends of the jaws have passages 106 for these wires and hard steel bushings 107 may be mounted therein to prevent wear. The spaces 108 between the jaws are suhiciently long to permit the longest halves 18 of the hair-pin pickets toswing through. The length of the space 108 of each main twister is therefore at least equal to the distance to the left ends of the pickets while in the loom.

Where the full length of the spaces 108 is not necessary, because of narrow fencing. the wedge blocks 109 shown in Figs. 10 and 11 may be secured in position by means ofy the bolts 110 and these wedges prevent theends of the twisters from being drawn together by the pull of the wires Afas they are being twisted together.

Tfwz'ster driving mechanism.

These twisters are rotated simultaneously in the same direction and to the same eX- tent. For this purpose the pinions 100 mesh with the rack bar 101 which is moved back and forth by a crank 118 shown in Figs. 87 and 40 to 48 inclusive. The shaft 48 has a collar 114 keyed to it and this collar 4is formed with a ring of worm teeth 115 with which meshes a worm 116 mounted on the shaft 117 carried by the bosses 118 on the hub 119 of the crank 118. The crank is also formed with a series of circular slots 120 to receive the screws 121 by means of which the crankis locked to the collar after being adjusted by the worm 116 so that the action of the rack bar 101 will occur at the eXactinstant desired. The shaft 48 may be prevented from sliding in the bearings 47 by this collar 114 and the collar 186 on opposite sides of one of thebearings.

Slidably mounted in a slot 122 in this crank is apin 128 which is mounted on the screw 124journaled at its inner end in the hub 119 and at its outer end in the-plate 125l which is held in position by the screws 126. This pin is slidablc between the sides of a yoke 127 provided `with a guide yarm 128 slidable in the guide bracket 129. The other 

